The Hornby Track Extension Pack D is a great addition for all Hornby model railway train sets.Add D to Starter Oval + A + B + C to make this layout with the inside extension, capable of running two trains at one time.Illustration shows Track Pack D added to Track Pack A, B and C plus the starter oval (shaded track parts show Track Pack D).Contents:-1x R8072 L/H Standard Point3x R605 Double Curve 1st Radius 371mm 45'1x R608 Single Curve 3rd Radius 505mm Arc 22.5'1x R636 Double Track Level Crossing 168mm1x R083 Buffer StopManufacturer: Hornby Model: R8224 Track Extension Pack D